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Published byPolly Poole Modified over 9 years ago
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AUDIO-SOUND HearingListening
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AESTHETICS Realism –Illusion of reality to support the visuals Modernism –Sound independent of visuals Post Modernism –Emphasizes listener participation to raise emotions
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TYPES OF MICS Transducer –Converts sound to electronics –Vibration of air against surface Dynamic Ribbon Condenser (Electret) Digital (still analog)
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PICK UP PATTERNS Omni-directional Bi-directional Unidirectional Cardiod Super cardiod
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MIC PLACEMENT On-camera –Hand-held –Desk/floor stand –Lavaliere-lapel Off-camera –Boom Fishpole, Giraffe, Perambulator –Hidden Body, hanging, prop
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MIC SELECTION Pickup pattern Hidden-visible Close-distant Quality vs. expense Transducer
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BEYOND MONAURAL Multiple mics –Close –Phasing 3 X rule p. 164 –Mixer Stereo –Multiple mics or special mics Surround or 5.1 or ???
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SOUND CONTROL Noise –Unwanted added sound –Too low level –Signal-to-noise ratiop. 167 –Ambient noise –System noise Distortion –Unwanted changes in sound –Too high level
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MEASUREMENT Volume-intensity-loudness Meters –Volume Units (VU) (average) –Peak Program Meter (PPM) (Peak) –Calibrated in dBs & % of distortion level Lights –Peak flashing –Light Emitting Diodes (LED) Automatic: AGC, ALC
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CABLES Professional- 2 + shield Amateur - 1+ shield Avoid –Power lines (cross at right angle) –Long lines –Coiled cable Proper handling –Over-under coiling –Don’t step on cables
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CONNECTORS-PLUGS Audio –XLR, –1/4” (phone), –RCA (phono), – Mini (1/8”0 Video –BNC –RF (F)
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MIXING Console-mixer-board Three stages –Input-mixing-output Controls-faders Pre-amplifiers Amplifiers Distribution Monitors,metering
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LEVELS Low –Mics, turntables Line –Deck outputs (CD, R-Dat, Tapes) High –Speaker, headphones
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SETTING LEVELS One at a time 80% as starting point Keep out of the “mud” Keep below distortion Head room
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COMMANDS Fade (in or out) Segue Cross fade Cut Open Sound up and under (bed) Backtime
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SOUND PERSPECTIVE Alone- self-explanatory Match visuals or counterpoint Stereo is not real Surround, 5.1 moves toward realism
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DIGITAL Digital Audio Workstations (DAW) –Can replace entire control room –Any PC/Mac with audio card Audio in and audio out always analog
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